Expansion of g^2/(1 + x*g), where g = 1+x*g^3 is the g.f. of A001764.

A391294

Expansion of g^2/(1 + x*g), where g = 1+x*g^3 is the g.f. of A001764.

Terms

    a(0) =1a(1) =1a(2) =5a(3) =21a(4) =102a(5) =523a(6) =2800a(7) =15461a(8) =87421a(9) =503634a(10) =2945680a(11) =17445439a(12) =104408063a(13) =630471742a(14) =3836546737a(15) =23503168829a(16) =144833792766a(17) =897177014491

External references